[Solved] You ran npx cypress run --headless but tests did not start. Which is the most likely cause? — Ans: You used cypress open --headless instead of run | Cypress

Cypress - CI/CD and Reporting

You ran npx cypress run --headless but tests did not start. Which is the most likely cause?

AHeadless mode requires a GUI environment

BYou forgot to install Cypress globally

CYou used <code>cypress open --headless</code> instead of <code>run</code>

DYour test files are missing or misnamed

Step-by-Step Solution

Solution:

Step 1: Check the command used
Using cypress open --headless is invalid because open does not support --headless.
Step 2: Evaluate other options
Installing Cypress globally is not required with npx. Missing test files cause errors but not silent failure. Headless mode does not require GUI.
Final Answer:
You used cypress open --headless instead of run -> Option C
Quick Check:
Use 'run' command with --headless [OK]

Quick Trick: Use 'run' not 'open' with --headless [OK]

Common Mistakes:

Master "CI/CD and Reporting" in Cypress

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You ran npx cypress run --headless but tests did not start. Which is the most likely cause?